1 /*- 2 * SPDX-License-Identifier: BSD-4-Clause 3 * 4 * Copyright (c) 1983, 1988, 1993 5 * The Regents of the University of California. 6 * Copyright (c) 2005 Robert N. M. Watson 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed by the University of 20 * California, Berkeley and its contributors. 21 * 4. Neither the name of the University nor the names of its contributors 22 * may be used to endorse or promote products derived from this software 23 * without specific prior written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 28 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 35 * SUCH DAMAGE. 36 */ 37 38 #if 0 39 #ifndef lint 40 static char sccsid[] = "@(#)mbuf.c 8.1 (Berkeley) 6/6/93"; 41 #endif /* not lint */ 42 #endif 43 44 #include <sys/cdefs.h> 45 __FBSDID("$FreeBSD$"); 46 47 #include <sys/param.h> 48 #include <sys/mbuf.h> 49 #include <sys/protosw.h> 50 #include <sys/sf_buf.h> 51 #include <sys/socket.h> 52 #include <sys/socketvar.h> 53 #include <sys/sysctl.h> 54 55 #include <err.h> 56 #include <kvm.h> 57 #include <memstat.h> 58 #include <stdint.h> 59 #include <stdio.h> 60 #include <stdlib.h> 61 #include <stdbool.h> 62 #include <string.h> 63 #include <libxo/xo.h> 64 #include "netstat.h" 65 66 /* 67 * Print mbuf statistics. 68 */ 69 void 70 mbpr(void *kvmd, u_long mbaddr) 71 { 72 struct memory_type_list *mtlp; 73 struct memory_type *mtp; 74 uintmax_t mbuf_count, mbuf_bytes, mbuf_free, mbuf_failures, mbuf_size; 75 uintmax_t mbuf_sleeps; 76 uintmax_t cluster_count, cluster_limit, cluster_free; 77 uintmax_t cluster_failures, cluster_size, cluster_sleeps; 78 uintmax_t packet_count, packet_bytes, packet_free, packet_failures; 79 uintmax_t packet_sleeps; 80 uintmax_t tag_bytes; 81 uintmax_t jumbop_count, jumbop_limit, jumbop_free; 82 uintmax_t jumbop_failures, jumbop_sleeps, jumbop_size; 83 uintmax_t jumbo9_count, jumbo9_limit, jumbo9_free; 84 uintmax_t jumbo9_failures, jumbo9_sleeps, jumbo9_size; 85 uintmax_t jumbo16_count, jumbo16_limit, jumbo16_free; 86 uintmax_t jumbo16_failures, jumbo16_sleeps, jumbo16_size; 87 uintmax_t bytes_inuse, bytes_incache, bytes_total; 88 int nsfbufs, nsfbufspeak, nsfbufsused; 89 struct sfstat sfstat; 90 size_t mlen; 91 int error; 92 93 mtlp = memstat_mtl_alloc(); 94 if (mtlp == NULL) { 95 xo_warn("memstat_mtl_alloc"); 96 return; 97 } 98 99 /* 100 * Use memstat_*_all() because some mbuf-related memory is in uma(9), 101 * and some malloc(9). 102 */ 103 if (live) { 104 if (memstat_sysctl_all(mtlp, 0) < 0) { 105 xo_warnx("memstat_sysctl_all: %s", 106 memstat_strerror(memstat_mtl_geterror(mtlp))); 107 goto out; 108 } 109 } else { 110 if (memstat_kvm_all(mtlp, kvmd) < 0) { 111 error = memstat_mtl_geterror(mtlp); 112 if (error == MEMSTAT_ERROR_KVM) 113 xo_warnx("memstat_kvm_all: %s", 114 kvm_geterr(kvmd)); 115 else 116 xo_warnx("memstat_kvm_all: %s", 117 memstat_strerror(error)); 118 goto out; 119 } 120 } 121 122 mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_MEM_NAME); 123 if (mtp == NULL) { 124 xo_warnx("memstat_mtl_find: zone %s not found", MBUF_MEM_NAME); 125 goto out; 126 } 127 mbuf_count = memstat_get_count(mtp); 128 mbuf_bytes = memstat_get_bytes(mtp); 129 mbuf_free = memstat_get_free(mtp); 130 mbuf_failures = memstat_get_failures(mtp); 131 mbuf_sleeps = memstat_get_sleeps(mtp); 132 mbuf_size = memstat_get_size(mtp); 133 134 mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_PACKET_MEM_NAME); 135 if (mtp == NULL) { 136 xo_warnx("memstat_mtl_find: zone %s not found", 137 MBUF_PACKET_MEM_NAME); 138 goto out; 139 } 140 packet_count = memstat_get_count(mtp); 141 packet_bytes = memstat_get_bytes(mtp); 142 packet_free = memstat_get_free(mtp); 143 packet_sleeps = memstat_get_sleeps(mtp); 144 packet_failures = memstat_get_failures(mtp); 145 146 mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_CLUSTER_MEM_NAME); 147 if (mtp == NULL) { 148 xo_warnx("memstat_mtl_find: zone %s not found", 149 MBUF_CLUSTER_MEM_NAME); 150 goto out; 151 } 152 cluster_count = memstat_get_count(mtp); 153 cluster_limit = memstat_get_countlimit(mtp); 154 cluster_free = memstat_get_free(mtp); 155 cluster_failures = memstat_get_failures(mtp); 156 cluster_sleeps = memstat_get_sleeps(mtp); 157 cluster_size = memstat_get_size(mtp); 158 159 mtp = memstat_mtl_find(mtlp, ALLOCATOR_MALLOC, MBUF_TAG_MEM_NAME); 160 if (mtp == NULL) { 161 xo_warnx("memstat_mtl_find: malloc type %s not found", 162 MBUF_TAG_MEM_NAME); 163 goto out; 164 } 165 tag_bytes = memstat_get_bytes(mtp); 166 167 mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_JUMBOP_MEM_NAME); 168 if (mtp == NULL) { 169 xo_warnx("memstat_mtl_find: zone %s not found", 170 MBUF_JUMBOP_MEM_NAME); 171 goto out; 172 } 173 jumbop_count = memstat_get_count(mtp); 174 jumbop_limit = memstat_get_countlimit(mtp); 175 jumbop_free = memstat_get_free(mtp); 176 jumbop_failures = memstat_get_failures(mtp); 177 jumbop_sleeps = memstat_get_sleeps(mtp); 178 jumbop_size = memstat_get_size(mtp); 179 180 mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_JUMBO9_MEM_NAME); 181 if (mtp == NULL) { 182 xo_warnx("memstat_mtl_find: zone %s not found", 183 MBUF_JUMBO9_MEM_NAME); 184 goto out; 185 } 186 jumbo9_count = memstat_get_count(mtp); 187 jumbo9_limit = memstat_get_countlimit(mtp); 188 jumbo9_free = memstat_get_free(mtp); 189 jumbo9_failures = memstat_get_failures(mtp); 190 jumbo9_sleeps = memstat_get_sleeps(mtp); 191 jumbo9_size = memstat_get_size(mtp); 192 193 mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_JUMBO16_MEM_NAME); 194 if (mtp == NULL) { 195 xo_warnx("memstat_mtl_find: zone %s not found", 196 MBUF_JUMBO16_MEM_NAME); 197 goto out; 198 } 199 jumbo16_count = memstat_get_count(mtp); 200 jumbo16_limit = memstat_get_countlimit(mtp); 201 jumbo16_free = memstat_get_free(mtp); 202 jumbo16_failures = memstat_get_failures(mtp); 203 jumbo16_sleeps = memstat_get_sleeps(mtp); 204 jumbo16_size = memstat_get_size(mtp); 205 206 xo_open_container("mbuf-statistics"); 207 208 xo_emit("{:mbuf-current/%ju}/{:mbuf-cache/%ju}/{:mbuf-total/%ju} " 209 "{N:mbufs in use (current\\/cache\\/total)}\n", 210 mbuf_count + packet_count, mbuf_free + packet_free, 211 mbuf_count + packet_count + mbuf_free + packet_free); 212 213 xo_emit("{:cluster-current/%ju}/{:cluster-cache/%ju}/" 214 "{:cluster-total/%ju}/{:cluster-max/%ju} " 215 "{N:mbuf clusters in use (current\\/cache\\/total\\/max)}\n", 216 cluster_count - packet_free, cluster_free + packet_free, 217 cluster_count + cluster_free, cluster_limit); 218 219 xo_emit("{:packet-count/%ju}/{:packet-free/%ju} " 220 "{N:mbuf+clusters out of packet secondary zone in use " 221 "(current\\/cache)}\n", 222 packet_count, packet_free); 223 224 xo_emit("{:jumbo-count/%ju}/{:jumbo-cache/%ju}/{:jumbo-total/%ju}/" 225 "{:jumbo-max/%ju} {:jumbo-page-size/%ju}{U:k} {N:(page size)} " 226 "{N:jumbo clusters in use (current\\/cache\\/total\\/max)}\n", 227 jumbop_count, jumbop_free, jumbop_count + jumbop_free, 228 jumbop_limit, jumbop_size / 1024); 229 230 xo_emit("{:jumbo9-count/%ju}/{:jumbo9-cache/%ju}/" 231 "{:jumbo9-total/%ju}/{:jumbo9-max/%ju} " 232 "{N:9k jumbo clusters in use (current\\/cache\\/total\\/max)}\n", 233 jumbo9_count, jumbo9_free, jumbo9_count + jumbo9_free, 234 jumbo9_limit); 235 236 xo_emit("{:jumbo16-count/%ju}/{:jumbo16-cache/%ju}/" 237 "{:jumbo16-total/%ju}/{:jumbo16-limit/%ju} " 238 "{N:16k jumbo clusters in use (current\\/cache\\/total\\/max)}\n", 239 jumbo16_count, jumbo16_free, jumbo16_count + jumbo16_free, 240 jumbo16_limit); 241 242 #if 0 243 xo_emit("{:tag-count/%ju} {N:mbuf tags in use}\n", tag_count); 244 #endif 245 246 /*- 247 * Calculate in-use bytes as: 248 * - straight mbuf memory 249 * - mbuf memory in packets 250 * - the clusters attached to packets 251 * - and the rest of the non-packet-attached clusters. 252 * - m_tag memory 253 * This avoids counting the clusters attached to packets in the cache. 254 * This currently excludes sf_buf space. 255 */ 256 bytes_inuse = 257 mbuf_bytes + /* straight mbuf memory */ 258 packet_bytes + /* mbufs in packets */ 259 (packet_count * cluster_size) + /* clusters in packets */ 260 /* other clusters */ 261 ((cluster_count - packet_count - packet_free) * cluster_size) + 262 tag_bytes + 263 (jumbop_count * jumbop_size) + /* jumbo clusters */ 264 (jumbo9_count * jumbo9_size) + 265 (jumbo16_count * jumbo16_size); 266 267 /* 268 * Calculate in-cache bytes as: 269 * - cached straught mbufs 270 * - cached packet mbufs 271 * - cached packet clusters 272 * - cached straight clusters 273 * This currently excludes sf_buf space. 274 */ 275 bytes_incache = 276 (mbuf_free * mbuf_size) + /* straight free mbufs */ 277 (packet_free * mbuf_size) + /* mbufs in free packets */ 278 (packet_free * cluster_size) + /* clusters in free packets */ 279 (cluster_free * cluster_size) + /* free clusters */ 280 (jumbop_free * jumbop_size) + /* jumbo clusters */ 281 (jumbo9_free * jumbo9_size) + 282 (jumbo16_free * jumbo16_size); 283 284 /* 285 * Total is bytes in use + bytes in cache. This doesn't take into 286 * account various other misc data structures, overhead, etc, but 287 * gives the user something useful despite that. 288 */ 289 bytes_total = bytes_inuse + bytes_incache; 290 291 xo_emit("{:bytes-in-use/%ju}{U:K}/{:bytes-in-cache/%ju}{U:K}/" 292 "{:bytes-total/%ju}{U:K} " 293 "{N:bytes allocated to network (current\\/cache\\/total)}\n", 294 bytes_inuse / 1024, bytes_incache / 1024, bytes_total / 1024); 295 296 xo_emit("{:mbuf-failures/%ju}/{:cluster-failures/%ju}/" 297 "{:packet-failures/%ju} {N:requests for mbufs denied " 298 "(mbufs\\/clusters\\/mbuf+clusters)}\n", 299 mbuf_failures, cluster_failures, packet_failures); 300 xo_emit("{:mbuf-sleeps/%ju}/{:cluster-sleeps/%ju}/{:packet-sleeps/%ju} " 301 "{N:requests for mbufs delayed " 302 "(mbufs\\/clusters\\/mbuf+clusters)}\n", 303 mbuf_sleeps, cluster_sleeps, packet_sleeps); 304 305 xo_emit("{:jumbop-sleeps/%ju}/{:jumbo9-sleeps/%ju}/" 306 "{:jumbo16-sleeps/%ju} {N:/requests for jumbo clusters delayed " 307 "(%juk\\/9k\\/16k)}\n", 308 jumbop_sleeps, jumbo9_sleeps, jumbo16_sleeps, jumbop_size / 1024); 309 xo_emit("{:jumbop-failures/%ju}/{:jumbo9-failures/%ju}/" 310 "{:jumbo16-failures/%ju} {N:/requests for jumbo clusters denied " 311 "(%juk\\/9k\\/16k)}\n", 312 jumbop_failures, jumbo9_failures, jumbo16_failures, 313 jumbop_size / 1024); 314 315 mlen = sizeof(nsfbufs); 316 if (live && 317 sysctlbyname("kern.ipc.nsfbufs", &nsfbufs, &mlen, NULL, 0) == 0 && 318 sysctlbyname("kern.ipc.nsfbufsused", &nsfbufsused, &mlen, 319 NULL, 0) == 0 && 320 sysctlbyname("kern.ipc.nsfbufspeak", &nsfbufspeak, &mlen, 321 NULL, 0) == 0) 322 xo_emit("{:nsfbufs-current/%d}/{:nsfbufs-peak/%d}/" 323 "{:nsfbufs/%d} " 324 "{N:sfbufs in use (current\\/peak\\/max)}\n", 325 nsfbufsused, nsfbufspeak, nsfbufs); 326 327 if (fetch_stats("kern.ipc.sfstat", mbaddr, &sfstat, sizeof(sfstat), 328 kread_counters) != 0) 329 goto out; 330 331 xo_emit("{:sendfile-syscalls/%ju} {N:sendfile syscalls}\n", 332 (uintmax_t)sfstat.sf_syscalls); 333 xo_emit("{:sendfile-no-io/%ju} " 334 "{N:sendfile syscalls completed without I\\/O request}\n", 335 (uintmax_t)sfstat.sf_noiocnt); 336 xo_emit("{:sendfile-io-count/%ju} " 337 "{N:requests for I\\/O initiated by sendfile}\n", 338 (uintmax_t)sfstat.sf_iocnt); 339 xo_emit("{:sendfile-pages-sent/%ju} " 340 "{N:pages read by sendfile as part of a request}\n", 341 (uintmax_t)sfstat.sf_pages_read); 342 xo_emit("{:sendfile-pages-valid/%ju} " 343 "{N:pages were valid at time of a sendfile request}\n", 344 (uintmax_t)sfstat.sf_pages_valid); 345 xo_emit("{:sendfile-pages-bogus/%ju} " 346 "{N:pages were valid and substituted to bogus page}\n", 347 (uintmax_t)sfstat.sf_pages_bogus); 348 xo_emit("{:sendfile-requested-readahead/%ju} " 349 "{N:pages were requested for read ahead by applications}\n", 350 (uintmax_t)sfstat.sf_rhpages_requested); 351 xo_emit("{:sendfile-readahead/%ju} " 352 "{N:pages were read ahead by sendfile}\n", 353 (uintmax_t)sfstat.sf_rhpages_read); 354 xo_emit("{:sendfile-busy-encounters/%ju} " 355 "{N:times sendfile encountered an already busy page}\n", 356 (uintmax_t)sfstat.sf_busy); 357 xo_emit("{:sfbufs-alloc-failed/%ju} {N:requests for sfbufs denied}\n", 358 (uintmax_t)sfstat.sf_allocfail); 359 xo_emit("{:sfbufs-alloc-wait/%ju} {N:requests for sfbufs delayed}\n", 360 (uintmax_t)sfstat.sf_allocwait); 361 out: 362 xo_close_container("mbuf-statistics"); 363 memstat_mtl_free(mtlp); 364 } 365